.ol-contextmenu {
  position: absolute;
  padding: 10px;
  list-style: none;
  background: #fff;
  color: #222;
  font-size: 13px;
  border-radius: 5px;
  box-shadow: rgba(0, 0, 0, 0.2) 3px 3px 5px;
  box-sizing: border-box;
}
.ol-contextmenu *, .ol-contextmenu *::before, .ol-contextmenu *::after {
  box-sizing: inherit;
}
.ol-contextmenu li{
  padding: 2px 5px;
}
.ol-contextmenu li:not(.ol-menu-sep):hover{
  cursor: pointer;
  background-color: #333;
  color: #eee;
}
.ol-contextmenu li.ol-menu-sep{
  padding: 0;
}
.ol-contextmenu li.ol-menu-sep hr{
  border: 0;
  height: 1px;
  background-image: -webkit-linear-gradient(right, rgba(0,0,0,0), rgba(0,0,0,0.75), rgba(0,0,0,0));
  background-image: linear-gradient(to left, rgba(0,0,0,0), rgba(0,0,0,0.75), rgba(0,0,0,0));
  
}
.ol-contextmenu.hidden {
  opacity: 0;
  visibility: hidden;
  -webkit-transition: opacity .25s linear, visibility 0 linear .25s;
          transition: opacity .25s linear, visibility 0 linear .25s;
}
.ol-contextmenu-icon{
  text-indent: 20px;
  background-size: 20px auto;
  background-repeat: no-repeat;
  background-position: left center;
}
.zoom-in {
  background-image: url('');
}
.ol-contextmenu li:hover.zoom-in{
  background-image: url('');
}
.zoom-out {
  background-image: url('');
}
.ol-contextmenu li:hover.zoom-out{
  background-image: url('');
}